/Engine/Source/Runtime/Engine/Public/Animation/NamedValueArray.h
Helper function Calls predicate on all elements in the two passed-in value arrays.
template<typename PredicateType, typename AllocatorType0, typename ElementType0, typename AllocatorType1, typename ElementType1> static void Union ( const [TNamedValueArray](API\Runtime\Engine\Animation\TNamedValueArray)< AllocatorType0, ElementType0 > & InValueArray0, const [TNamedValueArray](API\Runtime\Engine\Animation\TNamedValueArray)< AllocatorType1, ElementType1 > & InValueArray1, const PredicateType & InPredicate )